Charmed exotics in heavy ion collisions

Lee, Su Houng; Yasui, Shigehiro; Liu, Wei; Ko, Che Ming

doi:10.1140/epjc/s10052-007-0516-z

Cited by 62 publications

(57 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The expressions for classes 1 and 2, 3 and 4, and 5 and 6 are shown in Tables 1, 2, and 3, respectively. Here, we have simplified the expressions by using the following defini- 34 , and θ = 3C 12 − C 34 .…”

Section: Formalismmentioning

confidence: 99%

Exotic tetraquark states with the $$qq\bar{Q}\bar{Q}$$ q q Q ¯ Q ¯ configuration

et al. 2017

View full text Add to dashboard Cite

In this work, we study systematically the mass splittings of the qqQQ (q = u, d, s and Q = c, b) tetraquark states with the color-magnetic interaction by considering color mixing effects and estimate roughly their masses. We find that the color mixing effect is relatively important for the J P = 0 + states and possible stable tetraquarks exist in the nnQQ (n = u, d) and nsQQ systems either with J = 0 or with J = 1. Possible decay patterns of the tetraquarks are briefly discussed.

show abstract

Section: Formalismmentioning

confidence: 99%

Exotic tetraquark states with the $$qq\bar{Q}\bar{Q}$$ q q Q ¯ Q ¯ configuration

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Also, several other flavor exotic molecular and compact multiquark hadrons were previously predicted, based, respectively, on the meson-exchange and color-spin interactions. More recently, a simple diquark model based on the color-spin interaction [13,14] was shown to naturally explain the likely existence of flavor exotic multiquark hadrons consisting of heavy spectator quarks, such as the T 1 cc (udcc), T 0 cb (udcb), and Θ cs (udusc) that were predicted before, and the newly predicted dibaryon H ++ c (udusuc). Furthermore, the stable molecular bound statesDN and DN N in the charmed sector and the BN and BN N in the bottom sector have been predicted to exist as a result of the long-range pion-exchange potential [15,16].…”

Section: Introductionmentioning

confidence: 98%

“…To gain insights into all these proposals and questions [13,17,18], we have proposed in recent publications [19,20] a new approach of studying exotic hadrons in heavy ion collisions at ultrarelativistic energies. There are several merits for this approach compared to the search for exotic hadrons in elementary particle reactions that have been pursued so far.…”

Section: Introductionmentioning

confidence: 99%

Exotic hadrons in heavy ion collisions

et al. 2011

Self Cite

View full text Add to dashboard Cite

We investigate the possibilities of using measurements in present and future experiments on heavy ion collisions to answer some longstanding problems in hadronic physics, namely identifying hadronic molecular states and exotic hadrons with multiquark components. The yields of a selected set of exotic hadron candidates in relativistic heavy ion collisions are discussed in the coalescence model in comparison with the statistical model. We find that the yield of a hadron is typically an order of magnitude smaller when it is a compact multiquark state, compared to that of an excited hadronic state with normal quark numbers. We also find that some loosely bound hadronic molecules are formed more abundantly than the statistical model prediction by a factor of two or more. Moreover, due to the significant numbers of charm and bottom quarks produced at RHIC and even larger numbers expected at LHC, some of the proposed heavy exotic hadrons could be produced with sufficient abundance for detection, making it possible to study these new exotic hadrons in heavy ion collisions.

show abstract

“…Moreover, searches for exotic hadrons have usually been pursued in reactions between elementary particles. In this letter, we will show that measurements from heavy ion collisions at ultrarelativistic energies can provide new insights into the problem and give answers to some of the fundamental questions raised above [8][9][10]. In particular, we focus on the yields of multi-quark hadrons in heavy ion collisions.…”

mentioning

confidence: 99%